James....it WAS a humidity issue! Savannahs in the wild stay buried during the dry season. To keep hydrated. My brilliant hubby noticed the new set up was not holding humidity well...he sealed the screen with heating duct tape...we now have 85-90%, foggy glass, and a happily active, basking monitor! Whew, you can screw something up in a hurry with these guys! Gonna keep feeding in the tank and let him be for awhile so he can relax.
Thanks for the suggestions and input.
Thanks for the suggestions and input.